Highest temperature in Wellington on July 31?

Platform comparison

Market context

Wellington’s airport temperature on 31 July will be set by the day’s **highest recorded reading** at Wellington Intl Airport Station, so the key number is the intraday peak rather than the morning minimum or an overnight value. With the settlement window ending at 12:00 UTC, the relevant question for programme-style monitoring is whether the airport’s official history page logs a new daily maximum before the cut-off, then which Celsius band that maximum falls into on Wunderground’s history feed.

The current 0% YES price sits against a seasonal baseline that usually keeps Wellington cool at this time of year. July normals are around 11°C daytime in Wellington, while airport-specific historical July highs on major weather services are typically in the low teens Celsius, with recent monthly references showing a 31 July high around 53°F/12°C and a broader July pattern near 53°F for daily highs.[2][11][13] That makes the market read less like a one-way temperature bet and more like a threshold exercise: if the day tracks close to climatology, the highest temperature is likely to remain in the lower forecast bands unless a brief warm surge arrives.

For a trader running this mechanically, the main inputs are the live airport observation, the Wunderground daily-history page, and any late forecast updates from MetService or AccuWeather that might flag a warm northerly break, frontal rain band, or wind shift. Current guidance points to patchy rain nearby, a 59% rain chance, and a strong-wind watch into Friday morning, which argues for monitoring both cloud cover and mixing rather than just headline highs.[1][4][15] A practical workflow is to poll the station history page near the expected afternoon peak, compare the observed maximum against the market’s temperature buckets, and treat last-minute forecast revisions as the only meaningful catalyst.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Wellington on July 31? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Review UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Review UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Review UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.